A 3Ø induction motor having a star-connected rotor has an induced emf of 80V betweenslip-rings at standstill on open-circuit. The rotor has a resistance and reactance per phase of1Ω and 4Ω respectively. Determine the value of a delta connected rheostat connected tothe rotor slip-rings and the pf of the rotor circuit when the starting line current is 14.14A

Q: A single-phase induction motor with a starting capacitor, bac th e fellowin icationc:

A: The parameters of a single-phase Induction motor are: R1m=Stator Resistance=2ΩX1m=Stator…

Q: 'hy does a slip occur in the three-phase induction motor? Expla

A: In a three phase induction motor, a three phase supply with a phase difference 120…

Q: A 480-V, 25-hp, 50-Hz, Six-pole, Y-connected induction motor has the following impedances in ohms…

A: We are authorized to answer three subparts at a time, since you have not mentioned which part you…

Q: If the no-load speed of a squirrel cage induction motor connected to a three-phase, 50 Hz is 12.…

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Q: In a DC motor the relation between the core loss (Pcore) and rotational loss (Protational) iS O…

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Q: Describe the simulation of three phase induction motor

A: Three Phase Induction Motor: A three-phase induction motor is an electro mechanical energy converter…

Q: Find the magnitude and phase angles of the currents in the is applied to the motor under starting…

A: Given,                 P=1KW            V=120V             f=60Hz   a)…

Q: We use stroboscope to calculate the torque of three- phase induction motor?* True False

A: Scroboscope is used to measure the speed of induction motor.

Q: 2. A 220V 30 6poles 50Hz induction motor is running at a slip of 3.5 %. Find the following: (a) slip…

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Q: 4- An induction Motor is a) Self-starting with high torque c) Self-starting with low torque 5- In…

A: (4) Starting of induction motor: Because each phase's winding displacement is 120 degrees, and the…

Q: Select the following condition on three phase induction motor which gives very low value of slip. O…

A: Choose the correct option Which condition gives low value of slip on 3 phase induction motor.

Q: a) The rotor power output of a 3-phase induction motor is 15 kW and the corresponding slip is 4%.…

A: Given - Rotor power output = 15 kW, Slip s = 4%. To Find -  Rotor copper loss.

Q: -Phase 50Hz 6 pole induction motor has rotor resistance of 0.1 ohm and reactance of 0.92. ignore…

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Q: - which of the following 3-phase motors has a wire wound rotor a- polyphase induction motor…

A: 1. Polyphase induction motor consists of wire wound rotor and slip rings. Hence option b is the…

Q: 1A. 2A. SA. Submit to complete th

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Q: the efficiency of the 1 phase induction motor could be better increased by adding a permanently…

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Q: Stator current, Power factor, leading or lagging? Speed and Output Torque, Efficiency,

A: Induction Motor Induction motor is a type of AC asynchronous motor which converts AC electrical…

Q: 1. A 3-phase induction motor at standstill has a rotor voltage of 120 V between the slip rings on…

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Q: calculate (i) the slip (ii)the e.m.f. induced in rotor in each phase (iii) the rotor resistance per…

A: A 3-phase star connected induction motor has,  frequency f=50 Hz,  No.of poles (P)=4 At standstill…

Q: A 3-phase induction motor running with 25% slip takes 100kw from the mains. If the stator copper…

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Q: A 4 Pole, 50 Three Phase Motor 25 Kg. The meter produces a maximum torque of 1350 Nm per minute. So…

A: Solution : Given data: pole P= 4 , frequency f=50 ,  Three Phase Motor Tm=  25 Kg, produces a…

Q: In an induction machine stator has 8 poles and is excited by a 60 Hz source. If the rotor is driven…

A: Sycronous speed=120×frequencypoles=120×608                   =900 r.p.m Given rotor rotates in…

Q: What are the following statements are true for a three-phase induction motor? I. Three-phase…

A: Based on the construction and working of three phase induction motor this question can be answered .

Q: A two-phase induction motor, 4 kW, quadrupole, 250 V and 50 Hz, has the following specifications: R…

A: Ans (a)  Zf = jXm2r2/2 s +jx2/2r2/2s + jXm + X2/2 ------- 1) putting value in equation -1) Zf =…

Q: The armature of a DC machines is made up of If a 3-phase induction motor has synchronous speed of…

A: find explanation below

Q: induction motor has

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Q: Which of the following NEMA design classes of Induction motor has double-cage rotor? Both Class-D…

A: Class C

Q: At rest condition, the slip of induction motor is 1. Select one: True False

A: Solution : Slip of  induction motor is 2 to 3% when the motor is operated under the rated load.

Q: How rotor winding is derived the power in the three-phase induction motor? O a. from Single phase…

A: The power flow diagram of a three phase induction motor is shown below,

Q: Q1) A 460-V, 25-hp, 60-Hz, four-pole, Y-connected induction motor has the following impdances in…

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Q: ii)Conduct suitable tests to measure the copper loss occurs in a three phase Induction Motor.

A: Hello. Since you have posted multiple questions and not specified which question needs to be solved,…

Q: A) Although the magnetic field for each phase of a 3-phase induction motor is merely switching back…

A: For a 2 pole, 3 phase stator winding, the three windings are displaced from each other by 1200 along…

Q: The efficiency of 3-ph induction motor. at (Is=4.5A, T=13 N.m, N=1333 rpm, Pph=864 watt ) is

A: The solution can be achieved as follows.

Q: A three-phase squirrel cage induction machine with rated frequency of f = 50 Hz has a rated slip Sn…

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Q: Write a summary ( point) about equivalent cricuit of three phase induction motor .

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Q: The power input to the rotor of 440 V, 50 Hz, 6-pole, 3-phase, induction motor is 80 kW at a slip of…

A: Supply voltage,VS = 440 VSupply frequency,f = 50 HzNumber of poles, P = 6Input power,Pg = 80…

Q: No load test was conducted on a three phase induction motor at different input voltages and the…

A: In induction motor, overall constant loss will be the sum of iron loss and mechanical loss. But…

Q: At rest condition, the slip of induction motor is 0. Select one: True False

A: slip of induction motor = Synchronous speed - motor speedsynchronous speed

Three Phase Induction Motor

The induction motor is an electric motor that runs on AC (alternating current) and it is of two type single phase motor that work on single-phase power supply and three-phase motor that work on three-phase power supply.